Patent US2660081A successfully refreshed from Google Patents.
US2660081A
Expired / Lapsed
US
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Safety chuck key with ejector means
Assignee: Individual
•
Filing: 1952-04-26
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Granted: 1953-11-24
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Dossie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:35
CPC Classifications
B; B25; B25B; B25B33/00; B25B33/005; Y; Y10; Y10T; Y10T279/00; Y10T279/34; Y10T279/3431; Y10T279/3437
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |